6.6 A game of attraction 1HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

6.6 A game of attraction

• Jacket in your locker
• Put your things on your desk

       Laptop/Book

       Notebook, pencil case

• Bag on the floor
  
• Read pages 165-167

Lessongoals

• Remember: I can define self-pollination and cross-pollination and give an example of each.
  
• Understand: I can explain how pollination by insects, animals or wind works and what features flowers have to attract pollinators.
  
• Apply: I can use the characteristics of flowers to predict if they are insect- or wind-pollinated.
  
• Analyse: I can compare wind- and insect-pollinated plants by identifying differences in structure and pollination strategies.

Homework 6.6

Asgmt 50-54, 57-58

Secret Student

This lesson, I have randomly picked someone to be the secret student.

I pay special attention to:

• Your use of English
• Your participation in the lesson

At the end I will reveal the secret student, If I can give them positive feedback, they also earn 1/3 +0,5 OR +1 cm² cheat sheet.

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

Rewards

• S = you get to make a cheatsheet for a test. Starts being 1 by 1 cm. Everytime you earn an S it gets 1 cm bigger to a max of 5 by 5 cm.
• + = If you earn this 3 + you get to add 0,5 to one of your biology marks.
• Snitch = You can pick a classmate who also is checked for homework
• ✔ = When you earn 3 ✔ you can turn them into a + or S
  

penalties

• 45 min extra worktime = you need to come after school and do homework, this will last for 45 min or until the task is done
• Coloringpage = You get to pick a coloringpage, You need to color it and perform tasks that might be on it. You need to hand it in during the next lesson, If you don't you get 2 marks.
• X = if you get 3 of these you will automaticly earn the 45 min extra worktime.
• Snitch = You can pick a classmate who also is checked for homework
• Lucky! = You don't get a penalty

Pollen is made in ...

1. The anther
2. The ovary
3. The filament
4. The ovule

What is the name of the big and coloured leaves of a flower?

1. Kepals
2. Petals
3. Setals
4. Sepals

What part of a carpel is closest to the sepals?

1. Style
2. Stem
3. Stigma
4. Ovary

Pollination

= The moment pollen lands on the stigma 

of a flower of the same species.

If pollen lands on the stigma of a 

different species > NO pollination

Pollen is made in pollen sacs, inside the anther

1

Pollen is brought to other flowers with the help of pollinators: insects, animals or the wind

2

Pollen lands on the stigma from a flower of the same species = pollination

3

Pollen lands on the stigma of:

• different flower on same plant
• same flower 

Pollen lands on the stigma of a flower on a different plant of the same species

Self-pollination

Cross-pollination

cross-pollination

self-pollination

self-pollination

Pollen from an anther lands on the stigma of a different flower on the same plant

1

Pollen from an anther lands on the stigma of the same flower on the same plant.

2

Pollen from an anther lands on the stigma of a different flower on a different plant

3

How does pollen go from one flower to another?

Sometimes people help plants pollinate.
They use a small brush (=kwastje) to take some pollen from the anthers of a flower.
Then they brush the stigma of the flower they want to pollinate.

Jack wants to try this himself.
He brushes the anthers of a sunflower,
then he walks to a daisy and brushes the stigma.

What will happen?

1. The daisy has been pollinated
2. The sunflower has been pollinated
3. Nothing

Jack wants to try this a second time.
He brushes the anthers of a sunflower,
then he walks to another sunflower and brushes the stigma.
What will happen?

1. The sunflower has been cross-pollinated
2. The sunflower has been self-pollinated
3. Nothing

	Insectflower	Windflower
Flower	Big, attractive, nectar	Small, inconspicuous
Petal	Big, colourful	Small, green
Carpel/ Stamen	Inside the flower	Outside the flower
Pollination	Insects take pollen from one flower to another	Wind takes pollen from one flower to another

What you should do: 6.6

• Pages  165-167 TB
• Asgmt  50-54, 57-58  pgs 177-179 WB
• Challenge: 55 > read page 165 TB first!

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do: 6.6

• Pages 165-167 TB
• Asgmt 50-54, 57-58 pgs 177-179 WB
• Challenge: 55 > read page 165 TB first!

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk

A lot of plants are male and female at the same time.
Other plants have separate male and female plants.

Explain: Why is self-pollination impossible for these plants?

Secret Student

The secret student was .......

I paid special attention to:

• Your use of English
• Your participation in the lesson

If I can give them positive feedback, 

they also earn 1/3 +0,5 OR +1 cm² cheat sheet.

Tidy Duty

Today these people are on tidy duty

• Desks: empty and straight
• Chairs:  underneath the desks
• Floor: no rubbish